
function show_date_time(){
	var myDate = new Date();
	var rqpc=(myDate.getMonth()+1)+"/"+(myDate.getDate()+1)+"/"+myDate.getFullYear();
	var BirthDay=new Date(rqpc);//这个日期是可以修改的
	var today=new Date();
	var difff = -480 - today.getTimezoneOffset() //是北京时间和当地时间的时间差  
	var leavef = (BirthDay.getTime() - today.getTime()) + difff*60000  
	var dayf = Math.floor(leavef / (1000 * 60 * 60 * 24))  
	var hourf = Math.floor(leavef / (1000*3600)) - (dayf * 24)  
	var minutef = Math.floor(leavef / (1000*60)) - (dayf * 24 *60) - (hourf * 60)  
	var secondf = Math.floor(leavef / (1000)) - (dayf * 24 *60*60) - (hourf * 60 * 60) - (minutef*60)
	LiveClock2.innerHTML="离活动截止时间还有："+dayf+"天"+hourf+"小时"+minutef+"分"+secondf+"秒" ;
	setTimeout("show_date_time()",1000)
}
